Attaching device for drill-braces or the like.



No. 729,905. I PATENTED' JUNE 2 190a. J. FLSTEGKENREITER. ATTAGHINGD'BVIGB FOR DRILL BRAGES OR THE LIKE;

APPLIOA'IIIDN FILED JAN. 29, 1902.

MIQW No.729,905. I a

NiTED STATES Iatented June 2, 1903.

PATENT OFFI E.

JOHN F. STEOKEN-REITER, OF CHICAGO, ILLINOIS.

SPECIFICATION forming part of Letters Patent N0. 729,905, dated J1me 2, 1903.

Application filed January 29,1902. Serial No. 91,671. (No model.) L

.To all 1071,0111, it may concern:

Be it known thatl, JOHN F. STEOKENREI- TER, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Attaching Devices for Drill-Braces or the Like; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to a novel device designed, primarily, for attaching ratchet and power drill bracesin place while drilling or reaming holes in structural ironsuch as beams, round or square columns, chords of bridges, angle-bars, track-rails, and the like-+ and is similar to the device for the like purpose shown in my prior United States Letters Patent, No. 690,669, granted J anuary 7, 1962.

Among the objects of my invention is to i produce a device of the character mentioned which may bereadily attached to a part which is to be drilled 0r reamed and readily adjusted to beams or like parts of varying sizes or widths, which is light, and which may be easily carried about the building or other place at which it is used. j

The improvements herein shown ,relate more specificallyto meansfor adapting the device to beams or the like of varying widths and sizes and also to means for attaching the device to extra-wide beams, such as bridge chords or posts and built-up beams or girders and the like.

The invention consists in the matters hereinafter set forth, and more particularly point ed out in the appended claims.

In the drawings, Figure 1 is a side elevation of an apparatus embodying my invention and showing means for attaching the same to a bridge-post or like structure. Fig. 2 is a top plan view of the device shown in Fig. 1 with the drill-brace standard removed. Fig. 3 is an end view of the device shown in Fig. 2. Fig. 4 is a cross-section of the drill-bracestandard socket, taken on line 1 2 of Fig.2,

Fig. 5 is a side elevation of my device as adapted for relatively narrow beams or the like and showing the same in place on a beam. Fig. 6 illustrates the application of my device to a made-up beam or girder. Fig.

inclusive, designates what may be termed an end post of a bridge, and A, Fig. 5, designates a plain I or T beam. The attaching device proper consists of a socket member B and an attaching member 0, both made preferably of cast-steel. The socket member is shown as provided with two sockets 1313 either of which i is adapted to receive the standard D of the drill-lorace; but the number of sockets may be varied. Said standard carries at its outer end an adjustable radial arm D, adapted to serve asan abutment for the outer end of the drill. The socket B opens upwardly, while the socket B opens are in' the same plane and intersect each other, as herein shown, at right angles.

The attaching member 0 is provided on its inner face with two laterally-separated inwardly-directed adjusting arms or bars G C, which extend through openings 1) in the socket member B, as clearly shown in Figs. 1 and 4. Said arms have sliding engagement with the socket member and are adapted to be detachably connected with the socket member by means of set-screws Z2 which extend into the said openings and impinge at their inner ends against saidadjusting-arms. Said adjusting= arms are preferably made fiat and of rectangular cross-section, and the openings are made of the same cross-section and of such size that the bars-fit.closelytherein. Said arms G enable the device as a whole to be accurately fitted to parts of varying widths to be drilled, and the construction enables the workof adjustment to be easily andquickly accomplished.

The device is attached to the parts to be drilled or a frame which supports the same by means of hook-bolts B Bi, which extend upwardly through base-flanges in the-socketand attaching members ]3' and C, respectively. Wheniithe device is to .be attached to abeam no wider than the maximum adjustment of said device, such as the beam A, (shown in Fig. 5,) said hook-bolts are adapted to hook ICO bridge-chords, bridge-posts, or like wide structural parts, such as is shown in Fig. 1, I provide a supporting-frame E, which is constructed to be attached to said part A and to which the attaching device proper is adapted to be affixed. Said frame or rest consists of two parallel angle-bars E E, having their flanges horizontal in the same plane, and clamping means at the ends of said bars for clamping the same to the margins of the part A or other like part. Said clamping means consist of upper and lower transverse bars F and G, respectively, one pair at each end of the parallel bars E E, and clamping-bolts H, extending through the ends of said upper and lower bars F and G outside of the angle-bars E. Said lower bars G are made generally like an angle-bar, having alower horizontal flange g and avertical flange g. The horizontal flanges of said lower clamping-bars are adapted to fit under the margins of the part A or other part to which the device is to be attached, and said part is clamped between said lower horizontal flanges and the vertical flanges on the bars E in the manner shown in Fig. 1. Desirably the vertical flanges of the lower clamping-bars are notched, as indicated at g which notches are occupied by the vertical flanges of the bars E, as shown in Fig. 3. Said notches g are made of such size that the vertical flanges of the bars E fit snugly therein, so that should said angle-bars E haveatendency to twist while under stress the interfitting connections between the same and the flanges g of the end bars G act to brace said angle-bars. Said flanges g and g are connected at the ends of the bars G by a short oblique flange 9 as shown in Fig. 1, and the bolts H fit against said flanges and serve to increase the rigidity of the frame as a whole. The clamping devicesto wit, the

' transverse bars F .G and bolts H are free to slide endwise on the parallel bars E, so that the said supporting-frame may be readily adjusted to beams or girders of varying widths. The brace-attaching device is connected with said frame by means of the bolts B B said bolts extending through bolt-apertures e in the horizontal flanges of said bars, as clearly shown in Figs.2 and 3. A number of holes 6 is provided in each bar and spaced suitable distances apart, so that said attaching device may be shifted endwise of the frame, and thereby enable the drill supported by said brace to reach any point in the beam or girder to be drilled. In attaching the device to said frame E ordinary bolts may be employed instead of the hook-bolts B B forfixing the attaching device to the frame.

In Fig. 6 I have shown a means for attaching the device to a wide beam or girder A and wherein it is not necessary to provide for adjustment of the device laterally of the beam. In this form of the device the construction of the socket member B is the same as that shown in the figures previouslydescribed. In place, of the attaching member C, I provide two hooked bars I, but one being indicated in said Fig. 6. Said bars are each provided at one end thereof with a hook I, which is adapted to hook over one margin of the beam, and said bars extend at their other ends through the opening I) of the socket member B and are adjustably connected therewith by means of set-screws I). Said bars and the hooks are flat and rectangular in cross-section, thereby giving lightness to the device consistent with the proper strength. A considerable range of adjustment is afforded by making the bars I of sufficient length. The hooks I are formed to fit flanges on the beam of varying thickness and for this purpose are made inclined at their lower sides, as indicated by 1', while the upper inner sides of said hooks are parallel with the body of the bar I. With this construction the hooks I are adapted to fit closely upon flanges which vary considerably in thickness, thereby insuring a firm connection between said bars and the beams. In attaching this form of device in place the hooks I are first engaged with the flange of the beam at one side, after which the socket member B is laid flat on the opposite margin of the beam and the hook bolts turned under the adjacent flange of said beam.

The device may be varied to adapt the same to beams of other forms of construction than those herein shown, and I do not wish to be limited to the structural details herein illustrated, excepting as hereinafter made the subject of specific claims.

I claim as my invention- 1. An attaching device for ratchet-drill braces comprising a socket member provided with two sockets the axes of which meet at an angle and are located in the same plane, with laterally-extending base-flanges, and with openings located at either side of the sockets, parallel bars which extend at either side of the said sockets and have endwise= sliding engagement with the openings in the socket member, said bars having, at their outer ends, hooks adapted to engage the edge of a beam, clamping means on the socket member acting laterally on the bars to hold them adjustably in position, and hook-bolts inserted through the said base flanges at the side of the socket member remote from the hooked ends of the bars, said hook-bolts be= with openings located at either side of the sockets, parallel flat bars whichextend at either side of the sockets and have endwise sliding engagement with said openings in the socket member, said bars having their flat faces arranged in planes parallel with the axes of the sockets and being provided on their outer ends with hooks adapted to en- ICC IIO

gage the edge of a beam, set-screws inserted laterally through the socket member into said openings and bearing against the flat faces of the bars and hook-bolts inserted through said base-flanges at the side of the socket member remote from the hooked ends of the bars; said hook-bolts being located laterally outside of the planes of the said bars.

comprising a socket member, a supportingframe, comprising parallel angle-bars, the horizontal flanges of which are located in the same plane, transverse clamping-bars at each end of the frame, one above and the other below said angle-bars, bolts extending between and through said clamping-bars outside of the parallel bars, and means for attaching the socket member to the horizontal flanges of said bars, said lower clampingbars being notched and the vertical flanges of the parallel bars fitting in said notches.

In testimony that I claim the foregoing as my invention I affix my signature, in pres= ence of two witnesses, this 25th day of J anuary, A. D. 1902. I

JOHN F. STECKENREITER; Witnesses:

WILLIAM L. HALL,

GERTRUDE BRYCE. 

